bind9: update to 9.20.16

Author: danielluke

net/bind9/Portfile

@@ -4,7 +4,7 @@ PortSystem      1.0
 PortGroup       legacysupport 1.0
 
 name            bind9
-version         9.20.15
+version         9.20.16
 revision        0
 categories      net
 maintainers     {geeklair.net:dluke @danielluke} {jmr @jmroot}
@@ -30,9 +30,9 @@ homepage        https://www.isc.org/bind/
 distname        bind-${version}
 master_sites    isc:${name}/${version}
 
-checksums       rmd160    61ce1dba52ef20cd8b713fe3cbc6e6fcc81947fe \
-                sha256    d62b38fae48ba83fca6181112d0c71018d8b0f2ce285dc79dc6a0367722ccabb \
-                size      5765964
+checksums       rmd160    cfe377d48f97c3984d40fa7a7071356ed7d5bf6b \
+                sha256    03ffcc7a4fcb7c39b82b34be1ba2b59f6c191bc795c5935530d5ebe630a352d6 \
+                size      5768340
 
 use_xz          yes